java.. C# 使用AES加密互解 采用AES-128-ECB加密模式

java需要下载外部包， commons codec.jar 1.6  較新的JAVA版本把Base64的方法改成靜態方法，可能會寫成 Base64.encodeToString(encrypted, 0);
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;
/**
 *
 * @author Administrator
 *
 */
public class AES {

    // 加密
    public static String Encrypt(String sSrc, String sKey) throws Exception {
        if (sKey == null ) {
            System.out.print( "Key为空null" );
            return null ;
        }
        // 判断Key是否为16位
        if (sKey.length() != 16 ) {
            System.out.print( "Key长度不是16位" );
            return null ;
        }
        byte [] raw = sKey.getBytes( "utf-8" );
        SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES" );
        Cipher cipher = Cipher.getInstance( "AES/ECB/PKCS5Padding" ); //"算法/模式/补码方式"
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
        byte [] encrypted = cipher.doFinal(sSrc.getBytes( "utf-8" ));

        return new Base64().encodeToString(encrypted); //此处使用BASE64做转码功能，同时能起到2次加密的作用。
    }

    // 解密
    public static String Decrypt(String sSrc, String sKey) throws Exception {
        try {
            // 判断Key是否正确
            if (sKey == null ) {
                System.out.print( "Key为空null" );
                return null ;
            }
            // 判断Key是否为16位
            if (sKey.length() != 16 ) {
                System.out.print( "Key长度不是16位" );
                return null ;
            }
            byte [] raw = sKey.getBytes( "utf-8" );
            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES" );
            Cipher cipher = Cipher.getInstance( "AES/ECB/PKCS5Padding" );
            cipher.init(Cipher.DECRYPT_MODE, skeySpec);
            byte [] encrypted1 = new Base64().decode(sSrc); //先用base64解密
            try {
                byte [] original = cipher.doFinal(encrypted1);
                String originalString = new String(original, "utf-8" );
                return originalString;
            } catch (Exception e) {
                System.out.println(e.toString());
                return null ;
            }
        } catch (Exception ex) {
            System.out.println(ex.toString());
            return null ;
        }
    }

    public static void main(String[] args) throws Exception {
        /*
         * 此处使用AES-128-ECB加密模式，key需要为16位。
         */
        String cKey = "1234567890123456" ;
        // 需要加密的字串
        String cSrc = "www.gowhere.so" ;
        System.out.println(cSrc);
        // 加密
        String enString = AES.Encrypt(cSrc, cKey);
        System.out.println( "加密后的字串是：" + enString);

        // 解密
        String DeString = AES.Decrypt(enString, cKey);
        System.out.println( "解密后的字串是：" + DeString);
    }
}
C#

///

       /// 有密码的AES加密
       ///
       /// 加密字符
       /// 加密的密码
       /// 密钥
       ///
       public static string Encrypt( string toEncrypt, string key)
       {
           byte [] keyArray = UTF8Encoding.UTF8.GetBytes(key);
           byte [] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);

           RijndaelManaged rDel = new RijndaelManaged();
           rDel.Key = keyArray;
           rDel.Mode = CipherMode.ECB;
           rDel.Padding = PaddingMode.PKCS7;

           ICryptoTransform cTransform = rDel.CreateEncryptor();
           byte [] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

           return Convert.ToBase64String(resultArray, 0, resultArray.Length);
       }

        ///

       /// AES解密
       ///
       ///
       ///
       ///
       ///
       public static string Decrypt( string toDecrypt, string key)
       {
           byte [] keyArray = UTF8Encoding.UTF8.GetBytes(key);
           byte [] toEncryptArray = Convert.FromBase64String(toDecrypt);

           RijndaelManaged rDel = new RijndaelManaged();
           rDel.Key = keyArray;
           rDel.Mode = CipherMode.ECB;
           rDel.Padding = PaddingMode.PKCS7;

           ICryptoTransform cTransform = rDel.CreateDecryptor();
           byte [] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

           return UTF8Encoding.UTF8.GetString(resultArray);
       }

转载于:https://www.cnblogs.com/qizhuocai/p/8465957.html